i'm looking for something similar to "Re-scale" time function in 3Dsmax, for example: i have an animation, 260 frames, 15 frames per second, its durtion is about 17 seconds, i want to keep the duration, but change fps to 24, so.. i need over 400 frames,
now i'd like to rescale the key frames, so they fill proportionally these new 400 frames

i tried to scale it manually, but (under blender 2.34) scaling over X-axis doesn't work, it scales in both direction, X and Y, but i only want in X (time)

is there another-better way to rescale time/keyframes when i change fps???